********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 21 August 2014 Vol. XXVII No. 034 ______________________________________________________________________ GENERAL INFORMATION: To receive this information electronically, contact: ser7@maia.usno.navy.mil or use MJD = Julian Date - 2 400 000.5 days UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T) - 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T) where pi = 3.14159265... and T is the date in Besselian years. TT = TAI + 32.184 seconds DUT1= (UT1-UTC) transmitted with time signals = -0.3 seconds beginning 8 May 2014 at 0000 UTC Beginning 1 July 2012: TAI-UTC = 35.000 000 seconds *********************************************************************** * * * Please note that daily and Bulletin A EOP data can be obtained from * * the primary Earth Orientation (EO) servers at: * * http://maia.usno.navy.mil ftp://maia.usno.navy.mil * * and from the backup EO server at: * * http://toshi.nofs.navy.mil ftp://toshi.nofs.navy.mil * * * *********************************************************************** ________________________________________________________________________ The contributed observations used in the preparation of this Bulletin are available at . The contributed analysis results are based on data from Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and meteorological predictions of variations in Atmospheric Angular Momentum (AAM). ________________________________________________________________________ COMBINED EARTH ORIENTATION PARAMETERS: IERS Rapid Service MJD x error y error UT1-UTC error " " " " s s 14 8 15 56884 0.20885 .00009 0.36488 .00009 -0.320815 0.000006 14 8 16 56885 0.20966 .00009 0.36352 .00009 -0.321442 0.000012 14 8 17 56886 0.21019 .00009 0.36213 .00009 -0.321947 0.000007 14 8 18 56887 0.21031 .00009 0.36074 .00009 -0.322350 0.000006 14 8 19 56888 0.21006 .00009 0.35930 .00009 -0.322673 0.000005 14 8 20 56889 0.20976 .00009 0.35777 .00009 -0.322915 0.000065 14 8 21 56890 0.20963 .00009 0.35614 .00009 -0.323110 0.000055 _______________________________________________________________________ PREDICTIONS: The following formulas will not reproduce the predictions given below, but may be used to extend the predictions beyond the end of this table. x = 0.1085 + 0.0717 cos A + 0.0092 sin A + 0.0236 cos C - 0.0207 sin C y = 0.3669 + 0.0112 cos A - 0.0680 sin A - 0.0207 cos C - 0.0236 sin C UT1-UTC = -0.3599 - 0.00101 (MJD - 56898) - (UT2-UT1) where A = 2*pi*(MJD-56890)/365.25 and C = 2*pi*(MJD-56890)/435. TAI-UTC(MJD 56891) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56890)**0.80 S t = 0.00025 (MJD-56890)**0.75 Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d Polar coord's 0.004 0.007 0.010 0.013 UT1-UTC 0.0014 0.0024 0.0032 0.0040 MJD x(arcsec) y(arcsec) UT1-UTC(sec) 2014 8 22 56891 0.2097 0.3545 -0.32330 2014 8 23 56892 0.2099 0.3529 -0.32351 2014 8 24 56893 0.2102 0.3512 -0.32375 2014 8 25 56894 0.2105 0.3496 -0.32402 2014 8 26 56895 0.2107 0.3480 -0.32436 2014 8 27 56896 0.2110 0.3465 -0.32477 2014 8 28 56897 0.2111 0.3449 -0.32524 2014 8 29 56898 0.2112 0.3433 -0.32574 2014 8 30 56899 0.2113 0.3416 -0.32624 2014 8 31 56900 0.2114 0.3399 -0.32671 2014 9 1 56901 0.2114 0.3383 -0.32717 2014 9 2 56902 0.2114 0.3366 -0.32765 2014 9 3 56903 0.2113 0.3350 -0.32817 2014 9 4 56904 0.2113 0.3334 -0.32877 2014 9 5 56905 0.2112 0.3318 -0.32946 2014 9 6 56906 0.2111 0.3302 -0.33030 2014 9 7 56907 0.2109 0.3286 -0.33131 2014 9 8 56908 0.2107 0.3269 -0.33249 2014 9 9 56909 0.2105 0.3253 -0.33381 2014 9 10 56910 0.2103 0.3236 -0.33517 2014 9 11 56911 0.2100 0.3220 -0.33649 2014 9 12 56912 0.2097 0.3203 -0.33769 2014 9 13 56913 0.2094 0.3187 -0.33876 2014 9 14 56914 0.2090 0.3171 -0.33968 2014 9 15 56915 0.2086 0.3154 -0.34049 2014 9 16 56916 0.2082 0.3138 -0.34122 2014 9 17 56917 0.2078 0.3122 -0.34194 2014 9 18 56918 0.2073 0.3106 -0.34267 2014 9 19 56919 0.2068 0.3089 -0.34347 2014 9 20 56920 0.2063 0.3073 -0.34436 2014 9 21 56921 0.2057 0.3057 -0.34535 2014 9 22 56922 0.2051 0.3041 -0.34646 2014 9 23 56923 0.2045 0.3026 -0.34765 2014 9 24 56924 0.2038 0.3010 -0.34892 2014 9 25 56925 0.2031 0.2994 -0.35022 2014 9 26 56926 0.2024 0.2978 -0.35152 2014 9 27 56927 0.2016 0.2963 -0.35281 2014 9 28 56928 0.2008 0.2947 -0.35405 2014 9 29 56929 0.2000 0.2932 -0.35524 2014 9 30 56930 0.1992 0.2917 -0.35640 2014 10 1 56931 0.1983 0.2902 -0.35757 2014 10 2 56932 0.1974 0.2887 -0.35881 2014 10 3 56933 0.1965 0.2872 -0.36016 2014 10 4 56934 0.1955 0.2857 -0.36169 2014 10 5 56935 0.1945 0.2842 -0.36341 2014 10 6 56936 0.1935 0.2828 -0.36529 2014 10 7 56937 0.1924 0.2814 -0.36727 2014 10 8 56938 0.1914 0.2799 -0.36926 2014 10 9 56939 0.1903 0.2785 -0.37116 2014 10 10 56940 0.1891 0.2771 -0.37291 2014 10 11 56941 0.1880 0.2758 -0.37448 2014 10 12 56942 0.1868 0.2744 -0.37589 2014 10 13 56943 0.1856 0.2731 -0.37716 2014 10 14 56944 0.1843 0.2718 -0.37836 2014 10 15 56945 0.1831 0.2705 -0.37954 2014 10 16 56946 0.1818 0.2692 -0.38073 2014 10 17 56947 0.1805 0.2679 -0.38197 2014 10 18 56948 0.1791 0.2666 -0.38328 2014 10 19 56949 0.1777 0.2654 -0.38468 2014 10 20 56950 0.1764 0.2642 -0.38616 2014 10 21 56951 0.1749 0.2630 -0.38770 2014 10 22 56952 0.1735 0.2619 -0.38927 2014 10 23 56953 0.1720 0.2607 -0.39085 2014 10 24 56954 0.1705 0.2596 -0.39240 2014 10 25 56955 0.1690 0.2585 -0.39390 2014 10 26 56956 0.1675 0.2574 -0.39533 2014 10 27 56957 0.1660 0.2563 -0.39671 2014 10 28 56958 0.1644 0.2553 -0.39805 2014 10 29 56959 0.1628 0.2543 -0.39941 2014 10 30 56960 0.1612 0.2533 -0.40084 2014 10 31 56961 0.1595 0.2523 -0.40240 2014 11 1 56962 0.1579 0.2514 -0.40410 2014 11 2 56963 0.1562 0.2505 -0.40594 2014 11 3 56964 0.1545 0.2496 -0.40788 2014 11 4 56965 0.1528 0.2487 -0.40985 2014 11 5 56966 0.1511 0.2479 -0.41176 2014 11 6 56967 0.1493 0.2471 -0.41356 2014 11 7 56968 0.1475 0.2463 -0.41518 2014 11 8 56969 0.1458 0.2456 -0.41664 2014 11 9 56970 0.1440 0.2448 -0.41796 2014 11 10 56971 0.1421 0.2441 -0.41917 2014 11 11 56972 0.1403 0.2434 -0.42033 2014 11 12 56973 0.1385 0.2428 -0.42148 2014 11 13 56974 0.1366 0.2422 -0.42265 2014 11 14 56975 0.1347 0.2416 -0.42386 2014 11 15 56976 0.1329 0.2410 -0.42514 2014 11 16 56977 0.1310 0.2405 -0.42648 2014 11 17 56978 0.1291 0.2400 -0.42787 2014 11 18 56979 0.1271 0.2395 -0.42928 2014 11 19 56980 0.1252 0.2390 -0.43070 2014 11 20 56981 0.1233 0.2386 -0.43208 2014 11 21 56982 0.1213 0.2382 -0.43341 2014 11 22 56983 0.1194 0.2379 -0.43467 2014 11 23 56984 0.1174 0.2376 -0.43586 2014 11 24 56985 0.1154 0.2373 -0.43700 2014 11 25 56986 0.1134 0.2370 -0.43813 2014 11 26 56987 0.1115 0.2368 -0.43930 2014 11 27 56988 0.1095 0.2365 -0.44058 2014 11 28 56989 0.1075 0.2364 -0.44198 2014 11 29 56990 0.1055 0.2362 -0.44350 2014 11 30 56991 0.1034 0.2361 -0.44510 2014 12 1 56992 0.1014 0.2360 -0.44674 2014 12 2 56993 0.0994 0.2360 -0.44834 2014 12 3 56994 0.0974 0.2360 -0.44985 2014 12 4 56995 0.0954 0.2360 -0.45122 2014 12 5 56996 0.0933 0.2360 -0.45243 2014 12 6 56997 0.0913 0.2361 -0.45350 2014 12 7 56998 0.0893 0.2362 -0.45445 2014 12 8 56999 0.0873 0.2363 -0.45539 2014 12 9 57000 0.0852 0.2365 -0.45632 2014 12 10 57001 0.0832 0.2367 -0.45726 2014 12 11 57002 0.0812 0.2369 -0.45824 2014 12 12 57003 0.0792 0.2372 -0.45928 2014 12 13 57004 0.0772 0.2375 -0.46038 2014 12 14 57005 0.0752 0.2378 -0.46153 2014 12 15 57006 0.0731 0.2382 -0.46273 2014 12 16 57007 0.0711 0.2386 -0.46393 2014 12 17 57008 0.0691 0.2390 -0.46513 2014 12 18 57009 0.0672 0.2395 -0.46629 2014 12 19 57010 0.0652 0.2399 -0.46740 2014 12 20 57011 0.0632 0.2405 -0.46845 2014 12 21 57012 0.0612 0.2410 -0.46945 2014 12 22 57013 0.0593 0.2416 -0.47044 2014 12 23 57014 0.0573 0.2422 -0.47146 2014 12 24 57015 0.0554 0.2428 -0.47258 2014 12 25 57016 0.0534 0.2435 -0.47382 2014 12 26 57017 0.0515 0.2442 -0.47520 2014 12 27 57018 0.0496 0.2449 -0.47667 2014 12 28 57019 0.0477 0.2457 -0.47818 2014 12 29 57020 0.0458 0.2465 -0.47966 2014 12 30 57021 0.0440 0.2473 -0.48104 2014 12 31 57022 0.0421 0.2482 -0.48229 2015 1 1 57023 0.0403 0.2491 -0.48338 2015 1 2 57024 0.0384 0.2500 -0.48434 2015 1 3 57025 0.0366 0.2509 -0.48519 2015 1 4 57026 0.0348 0.2519 -0.48597 2015 1 5 57027 0.0330 0.2529 -0.48673 2015 1 6 57028 0.0313 0.2539 -0.48750 2015 1 7 57029 0.0295 0.2550 -0.48832 2015 1 8 57030 0.0278 0.2561 -0.48919 2015 1 9 57031 0.0261 0.2572 -0.49014 2015 1 10 57032 0.0244 0.2583 -0.49115 2015 1 11 57033 0.0227 0.2595 -0.49220 2015 1 12 57034 0.0211 0.2607 -0.49328 2015 1 13 57035 0.0195 0.2619 -0.49437 2015 1 14 57036 0.0179 0.2632 -0.49543 2015 1 15 57037 0.0163 0.2644 -0.49645 2015 1 16 57038 0.0147 0.2657 -0.49743 2015 1 17 57039 0.0132 0.2671 -0.49837 2015 1 18 57040 0.0116 0.2684 -0.49930 2015 1 19 57041 0.0101 0.2698 -0.50027 2015 1 20 57042 0.0087 0.2712 -0.50133 2015 1 21 57043 0.0072 0.2726 -0.50254 2015 1 22 57044 0.0058 0.2741 -0.50391 2015 1 23 57045 0.0044 0.2755 -0.50543 2015 1 24 57046 0.0030 0.2770 -0.50702 2015 1 25 57047 0.0017 0.2785 -0.50861 2015 1 26 57048 0.0004 0.2801 -0.51011 2015 1 27 57049 -0.0009 0.2816 -0.51147 2015 1 28 57050 -0.0022 0.2832 -0.51267 2015 1 29 57051 -0.0034 0.2848 -0.51372 2015 1 30 57052 -0.0046 0.2864 -0.51465 2015 1 31 57053 -0.0058 0.2881 -0.51550 2015 2 1 57054 -0.0069 0.2898 -0.51632 2015 2 2 57055 -0.0080 0.2914 -0.51716 2015 2 3 57056 -0.0091 0.2931 -0.51804 2015 2 4 57057 -0.0102 0.2949 -0.51899 2015 2 5 57058 -0.0112 0.2966 -0.52002 2015 2 6 57059 -0.0122 0.2984 -0.52112 2015 2 7 57060 -0.0132 0.3001 -0.52228 2015 2 8 57061 -0.0141 0.3019 -0.52348 2015 2 9 57062 -0.0150 0.3037 -0.52469 2015 2 10 57063 -0.0159 0.3056 -0.52588 2015 2 11 57064 -0.0167 0.3074 -0.52705 2015 2 12 57065 -0.0175 0.3092 -0.52817 2015 2 13 57066 -0.0182 0.3111 -0.52926 2015 2 14 57067 -0.0190 0.3130 -0.53033 2015 2 15 57068 -0.0197 0.3149 -0.53142 2015 2 16 57069 -0.0203 0.3168 -0.53259 2015 2 17 57070 -0.0210 0.3187 -0.53390 2015 2 18 57071 -0.0216 0.3206 -0.53539 2015 2 19 57072 -0.0221 0.3226 -0.53707 2015 2 20 57073 -0.0227 0.3245 -0.53888 2015 2 21 57074 -0.0232 0.3265 -0.54075 2015 2 22 57075 -0.0236 0.3285 -0.54257 2015 2 23 57076 -0.0240 0.3304 -0.54425 2015 2 24 57077 -0.0244 0.3324 -0.54574 2015 2 25 57078 -0.0248 0.3344 -0.54705 2015 2 26 57079 -0.0251 0.3364 -0.54819 2015 2 27 57080 -0.0253 0.3384 -0.54921 2015 2 28 57081 -0.0256 0.3404 -0.55015 2015 3 1 57082 -0.0258 0.3425 -0.55106 2015 3 2 57083 -0.0260 0.3445 -0.55200 2015 3 3 57084 -0.0261 0.3465 -0.55300 2015 3 4 57085 -0.0262 0.3486 -0.55409 2015 3 5 57086 -0.0262 0.3506 -0.55529 2015 3 6 57087 -0.0262 0.3526 -0.55658 2015 3 7 57088 -0.0262 0.3547 -0.55795 2015 3 8 57089 -0.0262 0.3567 -0.55938 2015 3 9 57090 -0.0261 0.3588 -0.56083 2015 3 10 57091 -0.0259 0.3608 -0.56227 2015 3 11 57092 -0.0258 0.3629 -0.56366 2015 3 12 57093 -0.0256 0.3649 -0.56498 2015 3 13 57094 -0.0253 0.3669 -0.56626 2015 3 14 57095 -0.0250 0.3690 -0.56751 2015 3 15 57096 -0.0247 0.3710 -0.56878 2015 3 16 57097 -0.0244 0.3731 -0.57014 2015 3 17 57098 -0.0240 0.3751 -0.57163 2015 3 18 57099 -0.0236 0.3771 -0.57328 2015 3 19 57100 -0.0231 0.3791 -0.57508 2015 3 20 57101 -0.0226 0.3812 -0.57697 2015 3 21 57102 -0.0220 0.3832 -0.57886 2015 3 22 57103 -0.0215 0.3852 -0.58066 2015 3 23 57104 -0.0209 0.3872 -0.58231 2015 3 24 57105 -0.0202 0.3892 -0.58378 2015 3 25 57106 -0.0195 0.3912 -0.58512 2015 3 26 57107 -0.0188 0.3931 -0.58635 2015 3 27 57108 -0.0180 0.3951 -0.58754 2015 3 28 57109 -0.0172 0.3971 -0.58875 2015 3 29 57110 -0.0164 0.3990 -0.59000 2015 3 30 57111 -0.0155 0.4009 -0.59130 2015 3 31 57112 -0.0146 0.4029 -0.59266 2015 4 1 57113 -0.0137 0.4048 -0.59410 2015 4 2 57114 -0.0127 0.4067 -0.59564 2015 4 3 57115 -0.0117 0.4085 -0.59723 2015 4 4 57116 -0.0107 0.4104 -0.59888 2015 4 5 57117 -0.0096 0.4123 -0.60058 2015 4 6 57118 -0.0085 0.4141 -0.60224 2015 4 7 57119 -0.0073 0.4159 -0.60384 2015 4 8 57120 -0.0062 0.4178 -0.60539 2015 4 9 57121 -0.0049 0.4195 -0.60685 2015 4 10 57122 -0.0037 0.4213 -0.60823 2015 4 11 57123 -0.0024 0.4231 -0.60960 2015 4 12 57124 -0.0011 0.4248 -0.61098 2015 4 13 57125 0.0002 0.4266 -0.61245 2015 4 14 57126 0.0016 0.4283 -0.61406 2015 4 15 57127 0.0030 0.4299 -0.61582 2015 4 16 57128 0.0044 0.4316 -0.61768 2015 4 17 57129 0.0059 0.4332 -0.61965 2015 4 18 57130 0.0074 0.4349 -0.62160 2015 4 19 57131 0.0089 0.4365 -0.62341 2015 4 20 57132 0.0105 0.4381 -0.62506 2015 4 21 57133 0.0121 0.4396 -0.62656 2015 4 22 57134 0.0137 0.4411 -0.62793 2015 4 23 57135 0.0153 0.4427 -0.62918 2015 4 24 57136 0.0170 0.4441 -0.63039 2015 4 25 57137 0.0187 0.4456 -0.63166 2015 4 26 57138 0.0204 0.4470 -0.63299 2015 4 27 57139 0.0222 0.4485 -0.63439 2015 4 28 57140 0.0240 0.4498 -0.63591 2015 4 29 57141 0.0258 0.4512 -0.63752 2015 4 30 57142 0.0276 0.4525 -0.63917 2015 5 1 57143 0.0295 0.4538 -0.64080 2015 5 2 57144 0.0314 0.4551 -0.64238 2015 5 3 57145 0.0333 0.4564 -0.64387 2015 5 4 57146 0.0352 0.4576 -0.64528 2015 5 5 57147 0.0371 0.4588 -0.64660 2015 5 6 57148 0.0391 0.4600 -0.64781 2015 5 7 57149 0.0411 0.4611 -0.64892 2015 5 8 57150 0.0431 0.4622 -0.64996 2015 5 9 57151 0.0452 0.4633 -0.65097 2015 5 10 57152 0.0472 0.4643 -0.65203 2015 5 11 57153 0.0493 0.4654 -0.65318 2015 5 12 57154 0.0514 0.4664 -0.65448 2015 5 13 57155 0.0535 0.4673 -0.65591 2015 5 14 57156 0.0557 0.4682 -0.65742 2015 5 15 57157 0.0578 0.4691 -0.65896 2015 5 16 57158 0.0600 0.4700 -0.66039 2015 5 17 57159 0.0622 0.4708 -0.66164 2015 5 18 57160 0.0644 0.4716 -0.66271 2015 5 19 57161 0.0666 0.4724 -0.66363 2015 5 20 57162 0.0688 0.4731 -0.66444 2015 5 21 57163 0.0710 0.4738 -0.66517 2015 5 22 57164 0.0733 0.4745 -0.66587 2015 5 23 57165 0.0756 0.4751 -0.66658 2015 5 24 57166 0.0779 0.4757 -0.66733 2015 5 25 57167 0.0802 0.4763 -0.66809 2015 5 26 57168 0.0825 0.4768 -0.66895 2015 5 27 57169 0.0848 0.4773 -0.66983 2015 5 28 57170 0.0871 0.4777 -0.67070 2015 5 29 57171 0.0894 0.4781 -0.67151 2015 5 30 57172 0.0918 0.4785 -0.67232 2015 5 31 57173 0.0941 0.4789 -0.67309 2015 6 1 57174 0.0965 0.4792 -0.67377 2015 6 2 57175 0.0988 0.4795 -0.67436 2015 6 3 57176 0.1012 0.4797 -0.67494 2015 6 4 57177 0.1036 0.4799 -0.67550 2015 6 5 57178 0.1060 0.4801 -0.67600 2015 6 6 57179 0.1084 0.4802 -0.67653 2015 6 7 57180 0.1107 0.4803 -0.67719 2015 6 8 57181 0.1131 0.4804 -0.67796 2015 6 9 57182 0.1155 0.4804 -0.67882 2015 6 10 57183 0.1179 0.4804 -0.67973 2015 6 11 57184 0.1203 0.4804 -0.68060 2015 6 12 57185 0.1227 0.4803 -0.68139 2015 6 13 57186 0.1251 0.4802 -0.68209 2015 6 14 57187 0.1275 0.4800 -0.68263 2015 6 15 57188 0.1299 0.4798 -0.68298 2015 6 16 57189 0.1323 0.4796 -0.68313 2015 6 17 57190 0.1346 0.4794 -0.68315 2015 6 18 57191 0.1370 0.4791 -0.68311 2015 6 19 57192 0.1394 0.4787 -0.68309 2015 6 20 57193 0.1418 0.4783 -0.68316 2015 6 21 57194 0.1441 0.4779 -0.68333 2015 6 22 57195 0.1465 0.4775 -0.68359 2015 6 23 57196 0.1488 0.4770 -0.68384 2015 6 24 57197 0.1512 0.4765 -0.68406 2015 6 25 57198 0.1535 0.4759 -0.68422 2015 6 26 57199 0.1558 0.4754 -0.68436 2015 6 27 57200 0.1581 0.4747 -0.68457 2015 6 28 57201 0.1605 0.4741 -0.68479 2015 6 29 57202 0.1627 0.4734 -0.68497 2015 6 30 57203 0.1650 0.4726 -0.68510 2015 7 1 57204 0.1673 0.4719 -0.68516 2015 7 2 57205 0.1695 0.4711 -0.68520 2015 7 3 57206 0.1718 0.4702 -0.68531 2015 7 4 57207 0.1740 0.4694 -0.68545 2015 7 5 57208 0.1762 0.4685 -0.68564 2015 7 6 57209 0.1784 0.4675 -0.68595 2015 7 7 57210 0.1806 0.4666 -0.68634 2015 7 8 57211 0.1828 0.4655 -0.68677 2015 7 9 57212 0.1849 0.4645 -0.68719 2015 7 10 57213 0.1870 0.4634 -0.68753 2015 7 11 57214 0.1892 0.4623 -0.68777 2015 7 12 57215 0.1912 0.4612 -0.68782 2015 7 13 57216 0.1933 0.4600 -0.68775 2015 7 14 57217 0.1954 0.4588 -0.68759 2015 7 15 57218 0.1974 0.4576 -0.68737 2015 7 16 57219 0.1994 0.4563 -0.68716 2015 7 17 57220 0.2014 0.4550 -0.68706 2015 7 18 57221 0.2034 0.4537 -0.68702 2015 7 19 57222 0.2053 0.4523 -0.68708 2015 7 20 57223 0.2072 0.4509 -0.68718 2015 7 21 57224 0.2091 0.4495 -0.68728 2015 7 22 57225 0.2110 0.4481 -0.68736 2015 7 23 57226 0.2128 0.4466 -0.68740 2015 7 24 57227 0.2146 0.4451 -0.68740 2015 7 25 57228 0.2164 0.4436 -0.68733 2015 7 26 57229 0.2182 0.4420 -0.68726 2015 7 27 57230 0.2199 0.4404 -0.68715 2015 7 28 57231 0.2216 0.4388 -0.68702 2015 7 29 57232 0.2233 0.4371 -0.68693 2015 7 30 57233 0.2249 0.4355 -0.68693 2015 7 31 57234 0.2266 0.4338 -0.68710 2015 8 1 57235 0.2281 0.4320 -0.68752 2015 8 2 57236 0.2297 0.4303 -0.68814 2015 8 3 57237 0.2312 0.4285 -0.68890 2015 8 4 57238 0.2327 0.4267 -0.68966 2015 8 5 57239 0.2342 0.4249 -0.69034 2015 8 6 57240 0.2356 0.4231 -0.69091 2015 8 7 57241 0.2370 0.4212 -0.69135 2015 8 8 57242 0.2384 0.4193 -0.69169 2015 8 9 57243 0.2397 0.4174 -0.69190 2015 8 10 57244 0.2410 0.4155 -0.69200 2015 8 11 57245 0.2423 0.4135 -0.69201 2015 8 12 57246 0.2435 0.4115 -0.69200 2015 8 13 57247 0.2447 0.4096 -0.69204 2015 8 14 57248 0.2459 0.4075 -0.69213 2015 8 15 57249 0.2470 0.4055 -0.69229 2015 8 16 57250 0.2481 0.4035 -0.69256 2015 8 17 57251 0.2492 0.4014 -0.69290 2015 8 18 57252 0.2502 0.3993 -0.69326 2015 8 19 57253 0.2512 0.3972 -0.69365 2015 8 20 57254 0.2521 0.3951 -0.69406 2015 8 21 57255 0.2530 0.3930 -0.69445 These predictions are based on all announced leap seconds. CELESTIAL POLE OFFSET SERIES: NEOS Celestial Pole Offset Series MJD dpsi error deps error (msec. of arc) 56875 -91.71 0.30 -13.93 0.02 56876 -91.57 0.30 -13.86 0.02 56877 -91.33 0.30 -13.91 0.02 56878 -91.29 0.30 -13.97 0.15 56879 -91.51 0.30 -13.88 0.02 56880 -91.80 0.30 -13.68 0.02 56881 -91.97 0.30 -13.54 0.02 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56875 0.073 0.119 -0.451 0.020 56876 0.107 0.119 -0.442 0.020 56877 0.122 0.119 -0.428 0.020 56878 0.117 0.119 -0.400 0.150 56879 0.100 0.119 -0.373 0.020 56880 0.098 0.119 -0.359 0.020 56881 0.108 0.119 -0.326 0.020 The recommended software to predict celestial pole offsets can be found at and software for the calculation of the dX and dY components with respect to IAU2000A Nutation/Precession Theory can be found at the web site in Chapter 5 Section 5.5 of the IERS Conventions (2010).